US Bridges

S-43-77 over Bush Branch

Poor

Sumter County, South Carolina · 8MI SW of Sumter · Structure no. 000000000007629

Built
1982
43 years old
Condition
Poor
inspected May 2024
Type
Channel Beam
Prestressed Concrete
Length
60 ft
2 main spans
Daily traffic
2,600
2023 count
Owner
State
State Highway Agency

About this bridge

S-43-77 over Bush Branch is a prestressed concrete channel beam carrying S-43-77 over Bush Branch in Sumter County, South Carolina. It was built in 1982, so it is 43 years old, younger than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 2,600 vehicles a day, roughly 9% of them trucks, projected to reach 3,250 by 2043. The structure is 60 ft (18.3 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesS-43-77
CrossesBush Branch
Location8MI SW of Sumter
RouteState Highway 77
Coordinates33.82226, -80.40002
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.3 US tons
Inventory rating28.2 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length60 ft (18.3 m)
Longest span30 ft (9.1 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,600 (2023)
Projected traffic3,250 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$109,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was S-43-77 over Bush Branch built?

It was built in 1982, making it 43 years old in 2025.

What condition is S-43-77 over Bush Branch in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does S-43-77 over Bush Branch carry?

About 2,600 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is S-43-77 over Bush Branch?

The structure is 60 ft (18.3 m) long with a longest span of 30 ft (9.1 m) and a deck 33 ft wide.

Who owns S-43-77 over Bush Branch?

It is owned by the State Highway Agency.